A non-contact planar microwave sensor for detection of high-salinity water containing NaCl, KCl, CaCl2, MgCl2 and Na2CO3

Harnsoongnoen, Supakorn; Wanthong, Anuwat

doi:10.1016/j.snb.2020.129355

Cited by 34 publications

(6 citation statements)

References 65 publications

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“…Indeed, ionic conductivity is proportional to the concentration of sodium chloride in the solution and inversely proportional to the viscosity 54 – 56 . It is worthwhile to note that the temperature influences the viscosity, this is highlighted in various research works 28 , 57 , 58 .…”

Section: Introductionmentioning

confidence: 93%

“…Accordingly, techniques using low-volume samples are arousing attention, which lead to a lot of studies focusing on planar resonant techniques because of their ability to achieve measurements with relatively small samples 2 , 3 , 28 . In addition to the limited requested volume of liquid (typically few microliters), these planar resonant techniques draw attention thanks to their compactness, low cost and ease of manufacture.…”

Section: Introductionmentioning

confidence: 99%

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Dielectric characterization and modelling of aqueous solutions involving sodium chloride and sucrose and application to the design of a bi-parameter RF-sensor

Nguenouho

Chevalier

Potelon

et al. 2022

Sci Rep

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This paper reports on dielectric properties of ternary mixtures involving sodium chloride (NaCl) and sucrose (C12H22O11) dissolved into water (H2O). Broadband electromagnetic characterizations of such mixtures at various concentrations were performed, evidencing a dual behavior made of conductive effects at low frequencies and dipolar relaxation at microwave frequencies. Conductive and dielectric properties resulting from these both effects were integrated into predictive models for variations of Cole–Cole model parameters. Based upon this modelling, an innovative microwave-based sensor able to retrieve concentrations of both sodium chloride and sucrose in ternary aqueous solutions was introduced, designed, realized and assessed. The proposed sensor shows an error lower than 5.5% for concentration ranges of 0 to 154 mmol/L for sodium chloride and 0 to 877 mmol/L for sucrose.

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Dielectric characterization and modelling of aqueous solutions involving sodium chloride and sucrose and application to the design of a bi-parameter RF-sensor

Nguenouho

Chevalier

Potelon

et al. 2022

Sci Rep

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show abstract

“…The use of cross-polarizing tags enabled the detection of the tag without the need to apply complex calibration techniques, based on measuring the S

parameter between the two cross-polarized antennas connected to the VNA. In [ 111 ], a microwave sensor for the detection of high-salinity water containing NaCl, KCl, CaCl

, MgCl

, and Na

was proposed. The design of the sensor combined a microstrip line and a split ring resonator (SRR) with a circular hole in the middle.…”

Section: Literature Review Of Nfc Sensorsmentioning

confidence: 99%

Recent Advances in Batteryless NFC Sensors for Chemical Sensing and Biosensing

Lazaro,

Villarino,

Lazaro

et al. 2023

Biosensors

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This article reviews the recent advances in the field of batteryless near-field communication (NFC) sensors for chemical sensing and biosensing. The commercial availability of low-cost commercial NFC integrated circuits (ICs) and their massive integration in smartphones, used as readers and cloud interfaces, have aroused great interest in new batteryless NFC sensors. The fact that coil antennas are not importantly affected by the body compared with other wireless sensors based on far-field communications makes this technology suitable for future wearable point-of-care testing (PoCT) devices. This review first compares energy harvesting based on NFC to other energy-harvesting technologies. Next, some practical recommendations for designing and tuning NFC-based tags are described. Power transfer is key because in most cases, the energy harvested has to be stable for several seconds and not contaminated by undesired signals. For this reason, the effect of the dimensions of the coils and the conductivity on the wireless power transfer is thoroughly discussed. In the last part of the review, the state of the art in NFC-based chemical and biosensors is presented. NFC-based tags (or sensor tags) are mainly based on commercial or custom NFC ICs, which are used to harvest the energy from the RF field generated by the smartphone to power the electronics. Low-consumption colorimeters and potentiostats can be integrated into these NFC tags, opening the door to the integration of chemical sensors and biosensors, which can be harvested and read from a smartphone. The smartphone is also used to upload the acquired information to the cloud to facilitate the internet of medical things (IoMT) paradigm. Finally, several chipless sensors recently proposed in the literature as a low-cost alternative for chemical applications are discussed.

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“…Recently, sensors operating at microwave frequencies have attracted attention due to their small footprint, ease of fabrication, robust nature, and real-time sensing capabilities 14 – 20 . These advantages have inspired the use of microwave resonators for various sensing applications including ice sensing 21 – 38 . Microwave resonator sensors operate by monitoring the interaction between high concentrations of electric field (E-field) and a material under test, allowing for material property changes to be observed in real time 39 .…”

Section: Introductionmentioning

confidence: 99%

Patch antenna sensor for wireless ice and frost detection

Kozak

Khorsand

Zarifi

et al. 2021

Sci Rep

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A patch antenna sensor with T-shaped slots operating at 2.378 GHz was developed and investigated for wireless ice and frost detection applications. Detection was performed by monitoring the resonant amplitude and resonant frequency of the transmission coefficient between the antenna sensor and a wide band receiver. This sensor was capable of distinguishing between frost, ice, and water with total shifts in resonant frequency of 32 MHz and 36 MHz in the presence of frost and ice, respectively, when compared to the bare sensor. Additionally, the antenna was sensitive to both ice thickness and the surface area covered in ice displaying resonant frequency shifts of 2 MHz and 8 MHz respectively between 80 and 160 μL of ice. By fitting an exponential function to the recorded data, the freezing rate was also extracted. The analysis within this work distinguishes the antenna sensor as a highly accurate and robust method for wireless ice accretion detection and monitoring. This technology has applications in a variety of industries including the energy sector for detection of ice on wind turbines and power lines.

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A non-contact planar microwave sensor for detection of high-salinity water containing NaCl, KCl, CaCl2, MgCl2 and Na2CO3

Cited by 34 publications

References 65 publications

Dielectric characterization and modelling of aqueous solutions involving sodium chloride and sucrose and application to the design of a bi-parameter RF-sensor

Dielectric characterization and modelling of aqueous solutions involving sodium chloride and sucrose and application to the design of a bi-parameter RF-sensor

Recent Advances in Batteryless NFC Sensors for Chemical Sensing and Biosensing

Patch antenna sensor for wireless ice and frost detection

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